Pressure-fluid tool.



L. O. BAYLES & A. H. TAYLOR.

PRESSURE FLUID TOOL.

APPLICATION FILED JULY 8,1910.

Patented Octx 20; 1914 fiINITED STATESPATENT OFFICE.

Lawrs CQBAYLES, or JoHaNNEsBtmo, TRANSVAAL, AND ALBERT K TAYLOR, orEASTON, PENNSYLVANIA, ASSIGNORS T monnsoLL-NANn COMPANY, or, new YORK,N. Y., A CORPORATION or NEW JERSEY.

PRESSURE-FLUID 'roor.

Specification of Letters Patent.

Patented Oct. 20,1914.

Application filed July 8, 1910. Serial No. 571,045.

To all whom it may concern:

Be it known that we, LEWIS C. llavuzs and Aminn'r H. TAYLOR, citizens ofthe .United Statenand residents, respectively,

of Johannesburg, 'lransvaal, and of Easton, 1!] the county ofNorthampton and State of Pennsylvania, have invented a new and usementsIn the construction, form andoperation of the several parts of apressure fluid full Improvement in Pressure-Fluid Tools, of which thefollowlng is a specification.

.Qur invention relates to certain improveactuatcd tool such, forinstance, as a hammer drill whereby the construction is materiallysimplified and the cost -'of the same ehea ened.

*lVlth these ends in view, our invention comprises a pressure fluidactuated tool in which the manually operated controlling or throttlevalve for controlling the admission of fluid pressure to both the feedand the tool is located in the valve chest. In this chest is alsolocated the valve for actuating the tool piston and the valve chest alsocarries the handle for rotating the tool.

A practical embodiment of our invention is represented in theaccompanyingdrawings, in which- Figure 1 represents the tool in sideelevation, Fig. .2 is a similar view-taken at right angles to Fig. 1,Fig. 3 is a view similar to Fig. 2 with the valve chest and part of thehammer cylinder and feed cylinder shown in longitudinal central section,and Fig. l

is a section taken in the plane of the line AA of Fig. 3, showing thelocation of the throttle valve and the rotating handle.

The hammer cylinder is denoted by 1; its piston hammer by 2; the fronthead by- 3 and the-tool steel by 4. The valve chest is denoted by 5 andis located at the inner end of the hammer cylinder 1, a plate 6 beinginterposed between the chest and hammer cylinder, which plate forms acover for the valve chest.

supply passage 15 by means ota' manually operated controlling orthrottle'valve 16,213

feed cylinder 8, through holes in the valve chest 5 and through holes inthe,plate .6, if such a plate is used, and then-through a flange 13 atthe inner end of thehammer cylinder 1, thus forming a simpleand1ell'ective means for locking the parts together and making theoperation of taking the tool apart, a very simple one. o

The valve 7 for controlling the operation of the piston hammer islocated in the valve chest 5 and may be of any desired form.f A mainpressure fluid inlet passage 14 is provided for the valve 7, whichassage is ar ranged to be brought into am out of coinmunieation with themain pressure fluid will be described ter. The motive fluid, exhaustpassage 1-7 leads to external atmosphere and is at all times in open.communiw! 75 cation with the piston hammer operating valve 7. Themanually operated pressure fluid controlling or throttle valve 16 isseated in the valve chest. 5 which forms a housing therefor. Thistl'rottle valve is provided exterior to the valve chest with an 3ovoperating handle 18. This throttle valve l6 has a central chamber 19which is always in open communication with the fluid pressure supplypassage. 15, as clearly shown in Fig. 4. 4 i

A port '20 in the throttle valve 16-is arranged to open and closecommunication between the passages 14 and 15am] a port 21 is arranged toopen and-close communi cation between the passage 'lai'and a passage -22leading to the interior of the feeding cylinder 8. These ports are soarranged that pressure fluid may be fed to the tool" feeding device andto the tool controlling valve to insure the proper working of theimechanism.

A tool rotating handle 23 is secured l the valve chest 5 as follows :Theinner end of the handle is provided with a screw threaded portion 24 andadjacent thereto flfi with'a tapered portion 25. The valve chs tj.

5 is provided withv a tapered hole therethrough for receiving thetaperedportion" 25 of the handle 23. A nut 26 is engaged,

with the screw threaded end 24 of the hall.

dlc Q 3 exterior to the valve chest for draw ing the tapered portion ofthe handle into' snug engagement with its seat lVhile wehay'e shown thisinvention as applied to a pressure fluid actuated hammer drill, it is tobe understood that the invention may be equally .11 applied to fluidpressure tools of various kinds. 7 1 Whatjwe claim is i '1. 'Ina'pressure fluid tool, the tool cylinder, its piston, a tool feedingcylinder, its piston, a valve chest located between; the

30 two cylinders, a plate inter osed between the valve chest and toolcylinder forming a cover for the valve chest and bolts engagpiston, avalve chest. located between the two cylinders, a plate interposedbetween the valve. chest and tool cylinder forming h Intestimony, thatwe claim the foregoing v as our invention, we have signed our names inpresence of two witnesses, this fifth day of July, 1910.

= LEWIS BAYLES.

ing the t\\'o-c ylinders valve chest and plate for securing the valvechest, plate and cylin- 15 ,dersin assembled adjustment. r

I 2. In'a 'pressurefluid tool, the tool cylinder, its piston, atool'feedingeylinder, its.

ALBERT H. TAYLOR.

Witnesses: I i Y VARD Ranmxn,

' RUSSELL H. Wrunzml.

